class_docstr: Mapzen REST API
  =======================
  
  API Reference
  -------------
  https://mapzen.com/documentation/search/reverse/
code: def _build_params(self, location, provider_key, **kwargs):
      location = Location(location)
      return {
          "point.lat": location.lat,
          "point.lon": location.lng,
          "size": kwargs.get("size", 1),
          "layers": kwargs.get("layers"),
          "source": kwargs.get("sources"),
          "boundary.country": kwargs.get("country"),
          "api_key": provider_key,
      }
  
file_path: geocoder/geocoder/mapzen_reverse.py
imports: from __future__ import absolute_import
  import logging
  from geocoder.mapzen import MapzenResult, MapzenQuery
  from geocoder.location import Location
label_desc: Use image node_id 1 for calling the MapzenReverse obj's underlying member method code with example usage: obj._build_params(location, provider_key) and returns: dict